Dual DAT/sigma1 receptor ligands based on 3-(4-(3-(bis(4-fluorophenyl)amino)propyl)piperazin-1-yl)-1-phenylpropan-1-ol

Bioorg Med Chem Lett. 2008 Oct 1;18(19):5238-41. doi: 10.1016/j.bmcl.2008.08.065. Epub 2008 Aug 22.

Abstract

Ester analogs of (+/-)3-(4-(3-(bis(4-fluorophenyl)amino)propyl)piperazin-1-yl)-1-phenylpropan-1-ol were synthesized and evaluated for binding at DAT, SERT, NET, and sigma1 receptors, and compared to GBR 12909 and several known sigma1 receptor ligands. Most of these compounds demonstrated high affinity (K(i)=4.3-51 nM) and selectivity for the DAT among the monoamine transporters. S- and R-1-(4-(3-(bis(4-fluorophenyl)amino)propyl)piperazin-1-yl)-3-phenylpropan-2-ol were also prepared wherein modest enantioselectivity was demonstrated at the DAT. However, no enantioselectivity at sigma1 receptors was observed and most of the ester analogs of the more active S-enantiomer showed comparable binding affinities at both DAT and sigma1 receptors with a maximal 16-fold DAT/sigma1 selectivity.

Publication types

  • Research Support, N.I.H., Intramural

MeSH terms

  • Animals
  • Carbazoles / chemistry
  • Carbazoles / pharmacology
  • Cocaine / pharmacology
  • Combinatorial Chemistry Techniques
  • Dopamine Plasma Membrane Transport Proteins / metabolism*
  • Molecular Structure
  • Piperazines / chemical synthesis*
  • Piperazines / chemistry
  • Piperazines / pharmacology
  • Protein Binding
  • Rats
  • Receptors, sigma / metabolism
  • Stereoisomerism
  • Structure-Activity Relationship

Substances

  • 3-(4-(3-(bis(4-fluorophenyl)amino)propyl)piperazin-1-yl)-1-phenylpropan-1-ol
  • Carbazoles
  • Dopamine Plasma Membrane Transport Proteins
  • Piperazines
  • Receptors, sigma
  • vanoxerine
  • rimcazole
  • Cocaine